Home / 352,997.28-528,445.68-212,329.44

Finding the Fourth Proportional to 352,997.28, 528,445.68 and 212,329.44

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Solution

The fourth proportional to 352,997.28, 528,445.68 and 212,329.44 is: 317,862.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,997.28 : 528,445.68 = 212,329.44 : x
  2. Step 2: Convert to fraction form
    352,997.28/528,445.68 = 212,329.44/x
  3. Step 3: Cross multiply
    352,997.28x = 528,445.68 × 212,329.44
  4. Step 4: Simplify right side
    352,997.28x = 112,204,575,304.82
  5. Step 5: Solve for x
    x = 112,204,575,304.82/352,997.28
  6. Step 6: Final answer
    x = 317,862.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.